fix(ui): hide cascade in FREE even when state fetch fails

/api/protocols now returns uiHidden alongside edition; client
applies both so cascade/warp stay hidden if /api/clients errors
out (e.g. missing clientsTable in tunnel container).

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "amnezia-admin",
-  "version": "1.2.14",
+  "version": "1.2.15",
   "private": true,
   "description": "amnezia_web — базовая панель AmneziaWG (FREE: просмотр и удаление клиентов; полная версия — PRO).",
   "license": "MIT",

public/app.js

@@ -575,6 +575,7 @@ async function loadProtocols() {
   try {
     const data = await api("/api/protocols");
     applyEditionPayload(data);
+    applyUiHiddenFromPayload(data);
     protoLabel.textContent = `Протокол: ${data.currentLabel || "AmneziaWG"}`;
     if (profileHintEl) {
       if (data.singleProfile && typeof data.profilesPersistHint === "string" && data.profilesPersistHint) {

server.js

@@ -2169,6 +2169,7 @@ app.get("/api/protocols", requireAuth, (req, res) => {
     singleProfile: PROFILES.length < 2,
     profilesPersistHint: hintSingle,
     edition: editionPayload(),
+    uiHidden: { ...effectiveUiHidden() },
   });
 });